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FITNESS invited tough-as-nails TV trainer Jackie Warner, star of reality series Thintervention with Jackie Warner, to turn your living room into a circuit that will whip you into ready-for-prime-time shape. "In this workout, you're using several muscles simultaneously, making your heart and body work harder, so you burn more calories and actually keep on melting fat afterward," says Warner, who included some killer firmers from her latest Xtreme Timesaver Training DVD.

Before you begin: Grab your gear and follow the circuit in the order shown, inserting 30 seconds of rope jumping — or other cardio, like jumping jacks — after every two sculpting stations. Once you've hit all 10 moves, repeat the entire circuit. Ready to fast-forward to your sleekest physique? Just move the coffee table and get started!

Score this gear cheap! Exclusively for FITNESS readers: Go to proform.com and type in the code FITKIT at checkout to get this entire set of tools, a $75 value, for $50. Or use the code to get 10 percent off any individual items you need.

Rainbow Lunge

Stand with feet hip-width apart and hold a single 8- to 10-pound dumbbell overhead with a hand on either end; bend elbows 90 degrees to lower weight behind head. This is start position. Make it easier: Beginners should use a 3- to 5-pound dumbbell.